Method of making a long life high current density cathode from tungsten and iridium powders using a quaternary compound as the impregnant
Patent
·
OSTI ID:6375183
This patent describes a method of making a long life high current density cathode. It is suitable for operation in microwave devices. It is made from tungsten and iridium powders using a quaternary compound including barium, oxygen, a metal selected from the group consisting of osmium, iridium, rhodium, and rhenium, and a metal selected from the group consisting of strontium, calcium, scandium, and titanium as the impregnant.
- Assignee:
- Secretary of the Army, Washington, DC (USA)
- Patent Number(s):
- US 4957463; A
- Application Number:
- PPN: US s 7-459629
- OSTI ID:
- 6375183
- Country of Publication:
- United States
- Language:
- English
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